<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>神龙教主</title>
<link rel="stylesheet" href="./demo.css">
</head>
<body>
<!-- Tab选项卡1 -->
<div class="box tab1">
    <!-- 标题 -->
    <ul>
        <li class="active">1</li>
        <li>2</li>
        <li>3</li>
    </ul>
    <!-- 内容 -->
    <ol>
        <li class="active">1</li>
        <li>2</li>
        <li>3</li>
    </ol>
</div>

<div class="box tab2">
    <!-- 标题 -->
    <ul>
        <li class="active">1</li>
        <li>2</li>
        <li>3</li>
    </ul>
    <!-- 内容 -->
    <ol>
        <li class="active">1</li>
        <li>2</li>
        <li>3</li>
    </ol>
</div>
<script src="./demo.js">

</script>
<script>
    let tab1=new Tab('.tab1')
    let tab2=new Tab('.tab2')
</script>